baber/WOPTO huggingface dataset:
Patent GB-275678-A (GB)
Title: An improved process for the production of moulded articles and of plastic materials
IPC: C08G8/20
Filed: 1926-02-10
Abstract: 275,678. Burmeister, R. Feb. 10, 1926. Moulding resins.-Plastic materials made from polyhydric phenols, particularly resorcinol, and paraformaldehyde or other solid polymer of formaldehyde, with or without the addition of fillers, are converted into moulded articles by a single pressing at 120-125‹ C. for a period of 2-5 minutes depending on the thickness of the article.
Patent GB-576672-A (GB)
Title: Improvements in electrical frequency discriminator circuits
IPC: H03J7/04
Filed: 1944-03-03
Abstract: 576,672. Automatic tuning correction. GENERAL ELECTRIC CO., Ltd., and GLADWIN, A. S. Match 3, 1944, No. 3996. [Class 40 (v)] In a radio receiver provided with automatic tuning correction, the control potentials are obtained by rectification of the audio-frequency components present in the outputs from a pair of discriminator elements of the ordinary kind. Amplitude modulated carrier-frequency energy from the terminals 1 is applied to a discriminator of known type comprising a pair of elements 2, 3, the rectified outputs from these being applied over condensers 4 and resistances 5 so that the audio-frequency components in the outputs from the elements 2, 3 are applied to a further pair of rectifiers 6. The outputs from the rectifiers 6 are combined to produce the control potential foi the automatic tuning arrangement at the terminals 7. In addition, amplifiers may be placed between the condensers 4 and resistances 5 and the rectifiers 6 and filters may be used to select the audiofrequencies from which the control potential is derived.
Patent GB-1044274-A (GB)
Title: Improved process for preparing polysiloxane mixtures
IPC: C08G77/02
Filed: 1964-01-30
Abstract: A polyalkoxysiloxane mixture is made by reacting together a silicon tetrahalide, a primary or secondary alcohol of 1-16 C atoms, water and, as a co-reactant and reaction moderator, a tetraalkyl orthosilicate, the alkyl radicals of which correspond to the alkyl radical of the alkanol, the alkanol being present in a ratio of from 2.0 to 3.0 mols per mol. of the tetrahalide, the water being present in an amount from 10 to 25 mol. per cent, based on the total quantity of alkanol and water, and the orthosilicate being present in amount such that the volume ratio of the initial orthosilicate to the balance of the final reaction mixture is in the range of from 10:1 to 1:20.  Among the reactants specified, the preferred ones are SiCl4 and 2-ethylbutanol.  When using higher water-insoluble alcohols, addition of a mutual solvent, e.g. dioxane, is desirable.  The reaction is preferably effected at 70 DEG  to 105 DEG  F. and the crude product is purged of HCl by blowing with an inert gas or by neutralization with a base. Examples are given in which the products are mixtures of di- and poly-silicates.  Uses:  as hydraulic fluids and lubricants.
Patent GB-1133326-A (GB)
Title: Vacuum variable capacitor
Filed: 1966-01-31
Abstract: 1,133,326. Variable capacitors. JENNINGS RADIO MFG. CORP. 31 Jan., 1966 [3 Feb., 1965], No. 4140/66. Heading H1M. A liquid cooled vacuum variable capacitor comprises a cylindrical ceramic envelope 2 closed at one end by end cap assembly 3 which includes a plate 9 supporting the fixed capacitor plates 7 and inlet 24 and outlet 27 for circulation of liquid coolant to plate 9, and at the other end by end cap assembly 4 which includes movable plate 61 supporting the movable capacitor plates 63 and has inlet 72 and outlet 77 for circulation of liquid coolant to plate 61. Plate 61 is connected to the rest of end cap assembly 4 via a pair of concentric expansible bellows members 51, 67, the space between which is divided longitudinally by cylinders 64, 66 forming a fluid-tight sliding fit the one over the other, and fixed at their other ends. Coolant entering at inlet 72 passes through duct 71 down the outside of cylinders 64, 66 to plate 61, through holes 73, up the inside of cylinders 64, 66, through ducts 74 into chamber 42 defined by plate 41, around baffles 43, 44 and out. Coolant in the end cap assembly 3 passes directly to plate 9 then round baffles 19, 21 and out. The mobile plates are actuated by screw 56 engaging internally threaded bush 54 on to which is screwed slide stem 53 fixed at its other end to plate 61. End cap assembly 4 is attached to the ceramic envelope 2 through a seal ring 81 having a portion 82 extending into the envelope rolled over at 83 to shield the seal area against high potential gradients.
Patent GB-872902-A (GB)
Title: Device for influencing the fuel delivery of an injection pump supplying the fuel foran internal combustion engine
IPC: F02D1/00
Filed: 1959-02-06
Abstract: 872,902. Regulating. SCHAFER, G., and SCHAFER, O., [trading as KUGELFISCHER GEORG SCHAFER & CO.]. Feb. 6, 1959 [Feb. 7, 1958], No. 4218/59. Class 7(6). A fuel injection pump control rod 11 is controlled by a threedimensional cam 1, adjusted axially in accordance with engine speed, and throttle valve position, by a cam 2 operating a follower 1 and lever 27, and angularly by a member 24 adjusted in accordance with engine temperature and atmospheric pressure and temperature. The cam 2, Fig. 3, is moved axially by a pivoted arm 9 actuated from the throttle valve and is adjusted angularly by an engine-driven rotor 3 cooperating with a magnet 4 which produces a torque varying with engine speed which moves the cam against a coil spring 7. The cam 2 acts upon a lever 27 pivoted at 28 and acting to move the shaft 25 of the pump regulating cam 12 axially. The pivot 28 of the lever 27 is adjusted to increase the fuel supply at cold starting by a solenoid 30 in the engine starter circuit. Capsules 14, 15 responsive to air temperature and pressure act in series on the rack 24 to adjust the cam 12 angularly and a capsule 13 responsive to engine temperature adjusts a tapered member 18 between the capsules 14, 15. The cam 12 may control more than one pump regulating rod 11 and is provided with a separate cam surface for each rod 11.
Patent GB-669337-A (GB)
Title: Internal combustion engines with fuel pumps
IPC: F02M49/02
Filed: 1949-02-16
Abstract: 669,337. Carburetting. WERKSPOOR N. V. Feb. 16, 1949 [Feb. 17, 1948]. No. 4222/49. Class 7(iii) [Also in Group XXVIII]  An internal combustion engine of the injection type comprises a fuel pump 31 having a cylinder with a plunger 30 therein to inject fuel into the combustion chamber of the engine and driving means for the plunger including a cylinder 21 with a piston 22 therein, a pneumatic link, such as a piston and cylinder unit 19, 20; for actuating the piston 22 and a lever system, such as 23-28, for transmitting movement from the piston to the plunger respectively. The piston 22 is retracted by a spring 32 which acts on a crosshead 29. Ascent of the piston 22 is controlled by a valve 40 which is positioned between the cylinders 20, 21 to permit the latter to communicate with the atmosphere through a port 41. The valve 40 is connected to the lever 25 by a rod 48 and a lever 46 which is adjustably pivoted at 47 to control the movement of the piston 22. Hence as the piston 22 approaches the uppermost position the valve is moved down to close the port 41 and open an overflow 44 thus stopping the piston. A further lever system 52-54, Fig. 2, (not shown), is connected to the lever 25 and co-operates with a collar on the rod 13 just before the piston 9 reaches the upper position so as to impart to the first lever system an initial movement in the direction of the pump.
Patent GB-760675-A (GB)
Title: Improvements in stencil recording blank and process of preparation
Inventor: DALTON HAROLD RICHARD
IPC: B41N1/24
Filed: 1952-02-18
Abstract: Compositions comprising a cellulose derivative or a vinyl resin, conductive carbon, plasticizers, solvents, stabilizers and pigments, e.g. zinc sulphide, are used for making conductive stencil sheets or strippable coatings on blanks.  The cellulose derivative may be nitrocellulose or ethylcellulose, and the resin a copolymer of vinyl chloride and vinyl acetate or a copolymer of vinylidene chloride and acrylonitrile.  Plasticizers mentioned are dioctyl phthalate and tricresyl phosphate.  The solvent may be toluene, xylene, naphtha, ethanol, butanol, methyl ethyl ketone or butyl acetate and mixtures. The carbon may be acetylene black or Dixie black and the stabilizer calcium (ethyl acetoacetate)-acetate.
Patent GB-708768-A (GB)
Title: Improvements in cocktail cabinets
IPC: A47B69/00
Filed: 1952-02-20
Abstract: 708,768. Cabinets. COHEN, L. SEFTON-. Feb. 20, 1953 [Feb. 20, 1952], No. 4475/52. Class 52(1) A cocktail cabinet comprises a shallow tray divided into sections 11, 12 a cupboard 6 closed by a front 9 which swings down to form a support for glasses, and a lower section divided into two shallow cupboards with doors in the two ends of the cabinet and a central cupboard with an opening in the front. A hinged lid 14 is provided with apertures 15 to provide ventilation for food on the trays. A transformer 7 provides power for a light switched on automatically when the lid is opened. A mirror 16 is mounted on the lid.
Patent GB-699283-A (GB)
Title: Improvements in branched steel pipes
IPC: F16L41/02
Filed: 1952-02-20
Abstract: 699,283. Welded joints. BOVING & CO., Ltd. Feb. 20, 1952 [Feb. 20, 1951], No. 4490/52. Class 83 (iv). [Also in Group XXVIII] In a branched steel pipe a steel rod c of round section is interposed and welded at the junction of the branch. The ends c<SP>1</SP> of the rod are swaged to a reduced thickness, e.g. to the thickness of the pipe wall, and a web d may be welded to or abutted against the rod and welded to webs e on the main pipe a. Round steel rod may also be welded between the webs e and the pipe a. In a modification, Fig. 4, the rod c is in the form of an oval hoop.
Patent GB-548561-A (GB)
Title: Method and apparatus for separating liquids from solids
IPC: B04B11/02
Filed: 1941-04-10
Abstract: 548,561. Centrifugal separators. WITHERS. J. S. (Battelle Memorial Institute). April 10, 1941, No. 4777. [Class 23] Liquids are separated from solids, such as coal or like, by treatment in a perforated centrifuge basket 1 arranged and operated so that a bed of the material is established on the basket wall, and the remainder of the material flows over the established bed and is discharged at the top of the 'cage under the influence and control of air, dry steam, or like jets from the nozzles 21. The material is fed to the basket through a stationary central tube 12 with an adjustable sleeve 13 having a conical foot 14 from which any material will slip. A sleeve 15 on the feed tube 12 supports a plate 17 with a disc 17a of soft rubber, by means of a conical member 18. The sleeve 15 is also connected by pivoted levers 23 to the controlling valves 22 of the air supply to the nozzles 21. As the material is fed in and the basket rotated, the ring 20 at the top of the basket retains part of the material on the wall, and the streams of air from the nozzles 21 help to carry the dry solids into the casing 9. The separated liquid passes through the basket into the casing 26, and then moves upwards over the edge into the effluent receiver 6. As the basket becomes loaded, the edge of the rubber disc 17a rises to give more space in the basket, but resumes its normal position when the load slacks off.
Patent GB-122083-A (GB)
Title: Improvements in or relating to Cardboard Boxes and the like.
Inventor: BOLTON ANDREW ADAMS
IPC: B65D55/06
Filed: 1918-03-19
Abstract: 122,083. Bolton, A. A. March 19, 1918. Lids and covers, tampering with, preventing and detecting; covered boxes.-The lid or body of a box &c. is provided with one or more gummed flaps 3 adapted to secure the lid in its closed position. The flaps may be formed by extensions of the box-covering material, and they are so arranged that they may be folded inside the box until they are required for use. The invention may be applied to boxes having either hinged or slip-on lids.
Patent GB-644934-A (GB)
Title: Improvements in or relating to electro-cardiographs
Inventor: WOLFF JOACHIM
IPC: A61B5/0432
Filed: 1948-02-18
Abstract: In an electro-cardiograph apparatus the voltage derived from the electrodes is fed to an intermediate recording device, e.g. a magnetic tape recorder, operating at a fixed speed; this recording is subsequently "played back" at a low speed through a reproducer to a final recorder, e.g. a recording pen.  The resulting effect of frequency division enables the recording pen to record higher frequencies: the apparatus may include means for removing the record from the intermediate recording device.  Reference has been directed by the Comptroller to Specification 641,574.
Patent GB-372430-A (GB)
Title: Improvements in tentering and drying machines
IPC: D06C3/00
Filed: 1931-02-16
Abstract: 372,430. Drying fabrics. KRANTZ, H. and KRANTZ, W., (trading as KRANTZ SÍHNE, H.), Industriestrasse, Aachen, Germany. Feb. 16, 1931, No. 4840. Convention date, Jan. 17. [Class 34 (i).] In a fabric tentering and drying machine the reversing drums 2, 3 .. are arranged close to one another in each set, and the drying air is caused to pass through the machine transversely (i.e. through the plane of the paper). The chain guide-rails are preferably arranged so as to impart a change of direction to the fabric passing from one drum to another as at a. The fabric may be fed in either direction, and the runs may be arranged vertically. Additional air-currents may be used.
Patent GB-732653-A (GB)
Title: Improvements in automatic capping machines for receptacles
Inventor: JACKSON JOHN
IPC: B67B3/20
Filed: 1951-02-28
Abstract: 732,653. Stoppering. PETERS & CO., Ltd., G. D. May 16, 1952 [Feb. 28, 1951], No. 4867/51. Class 125(2). In a machine as described in Specification 732,658 in which receptacles are advanced by a conveyer 4 under a shoot from which they each extract a screw-cap and then pass between screwing-up means, any cap which is located on its receptacle in cross-threaded position and, therefore, projecting upwards, lifts a lever 50, a cross-piece 54 on which is raised clear of a yoke 55. This yoke is then urged to the right, Fig. 2, by a spring 53 so that a friction brake 51 bears on the cap edge to rotate it anticlockwise relative to the moving container and thus set it in proper screwing-up position. A catch 56 at the trailing end of the brake resets the yoke 55 and the brake.
Patent GB-639552-A (GB)
Title: A lathe attachment for use in machining spherical surfaces
IPC: B23B5/40
Filed: 1947-02-19
Abstract: 639,552. Lathes. TRUMEK, Ltd., and WALTON, J. I. AUSTEN-. Feb. 19, 1947, No. 4908. [Class 83 (iii)] A lathe attachment for turning spherical surfaces comprises a hollow body providing an internal chamber with external means for attachment to a lathe slide, a carrier rotatable against a face on the body and having a boss extending through a bearing in the wall of the body into the chamber, clamping means on the carrier for a cutting-tool, a worm-wheel within the chamber secured to the boss and a worm within the chamber meshing with the wormwheel and rotatable by a spindle passing outside the body, by which the tool may be moved in an arcuate path. The body portion 1 of the device may be provided with a shank 5 to be clamped in the usual lathe tool-holder or may be provided with a base-piece for attachment to the lathe in place of the cross-slide. A carrier part 2 is rotatable on the body portion and may be adapted to rotate in a horizontal or a vertical plane. The tool 4 is clamped in a holder 3 which is radially adjustable along a guide groove in the carrier for cutting spherical ends of different radii. Gauging stops 18, 19, Fig. 2, secured to adjustable rings 20, 21 respectively, arranged between the carrier and body portions, co-operate with a fixed stop 17 to limit the rotary movement' of the carrier obtained through the handle 12 and wormgearing 10, 11, Fig. 3. A number of gauge members 16 of different diameter are provided for setting the tool along its guide, other gauge blocks are provided for bringing the tool up to the axis of the work when the device is used in a horizontal position. Specifications 11009/03, [Class 83], 166,128, 245,668, [both in Class 83 (iii)], and 504,654 are referred to.
Patent GB-1168587-A (GB)
Title: Embossed Fibreboard
IPC: D21J1/00
Filed: 1968-01-31
Abstract: 1,168,587. Laminated fibreboard. ABITIBI PAPER CO. Ltd. 31 Jan., 1968 [2 Feb., 1967], No. 4914/68. Heading B5N. Pressed fibreboard is produced by applying a printed sheet of paper to a partially de-watered lap and then simultaneously embossing a pattern on to the paper-covered side of the lap and consolidating the paper and lap under heat and pressure. The embossed pattern, which may represent wood-grain, is similar to the printed pattern but no attempt is made accurately to register one with the other. Preferably, a linseed or other drying oil, which may be blended with petroleum polymers, is applied to the unprinted surface of the paper to enhance the bond and impart a degree of translucency. Glassine or other suitable paper may be arranged, during pressing between the overlay paper and the platen of the press. After removal of the glassine, the printed surface may be varnished. The caul plates may be of expendable lightweight material such as aluminium or plastics or even of natural objects such as leaves.
Patent GB-1381097-A (GB)
Title: Valves for liquids
IPC: F16K1/42
Filed: 1971-02-18
Abstract: 1381097 Valves D H SHARP 13 March 1972 [18 Feb 1971] 4914/71 Heading F2V [Also in Division G3] In a valve for shutting off flow in an oil pipeline in the event of leakage a ball 62 rests on a compressible seat 66 which is pressed against the ball by fluid pressure in the pipe-line. On leakage the pressure in the pipe-line drops, the seat moves away from the ball to allow equalization of pressure across the ball which floats upwards to close off an outlet hole and flow through the seat passes to a surge tank. A vent 71 may be provided in the seat. In a further embodiment for controlling flow from a water tank 239, the polythene seat 244 has an inlet 248 a vent 250 and an outlet 268. The seat is depressurised by moving ball 270 off its seat by lever 276. The polythene ball 264 move down on to stops 262 until the pressure differential decreases and it can float to the top of the tank. Ball valve 270 may be replaced by a pinch cock. Either of the above valve constructions may be used as valve 102 in a system for closing a float-operated gate 86 in the event of leakage in oil pipe-line 22. On leakage the seat of valve 102 collapses to allow flow from tank 122 to tank 98. The gate 86 thereby moves to closed position to shut-off the defective pipe 22.
Patent GB-1339234-A (GB)
Title: Apparatus for inducing shear waves in the earth
IPC: G01V1/053
Filed: 1972-02-02
Abstract: 1339234 Seismic energy generators INSTITUT FRANCAIS DU PETROLE DES  CARBURANTS ET LUBRIFIANTS 2 Feb 1972 [5 Feb 1971] 4983/72 Heading H4D Seismic shear waves are generated in the earth by producing explosive forces in a rigid enclosure having a surface acoustically coupled to the earth and by creating a lateral assymmetry in the distribution of the forces applied to the enclosure wall. In the Fig. 3 embodiment an explosion is created off-centre at 3 in an enclosure 1 having an acoustically transparent base 16 coupled to the ground via member 7. Asymmetric absorption of the resulting shock waves is obtained by dividing the enclosure into an air-containing compartment 4 and a water-containing compartment 5. Air in a compartment 12 of member 7 attenuates vertical components of the explosive sources, whereas the horizontal components are transmitted to the ground by a water-filled compartment 11 and the ridged base 8 of member 7 to create polarized shear waves. The explosion source may be a cartridge, exploding wire, or an electric arc. In alternative embodiments compartment 11 is replaced by a concrete block (Fig. 4, not shown), member 7 is a single compartment or is omitted (Figs. 1A, 1B, 1C, 2A, 2B, none shown), enclosure 1 contains no air and the force asymmetry is due solely to the assymmetric positioning of the explosion source within the enclosure (Figs. 2A, 2B, 4, not shown), or instead of air as a wave-absorbing medium there may be used sand, foam rubber or expanded polystyrene. Two shear wave generators oriented with respect to a seismic survey line so as to generate oppositely polarized shear waves may be actuated successively, and resulting recordings of their waves can then be subtracted one from the other to filter out parasitic waves.
Patent GB-1210938-A (GB)
Title: Production of a pharmaceutically acceptable saline solution containing radioactive gas and use thereof
Inventor: TILBURY ROY SIDNEY
IPC: A61K51/12
Filed: 1968-01-31
Abstract: 1,210,938. Radio-active materials. UNION CARBIDE CORP. 31 Jan., 1968, No. 5006/68. Heading G6R. A saline solution containing a constant concentration of a radio-active gas, for use in radiopharmaceutical diagnosis, is prepared by condensing a radio-active gas into an evacuated zone containing sodium chloride, entirely filling the zone with water to form an isotonic solution, displacing the solution by means of an insoluble silicone oil, and dispensing the solution into sealable cartridges. The gas may be Xe-133 or Kr-85. In a modification, the radio-active gas is condensed in the dissolution zone in the absence of sodium chloride, and saline solution is admitted subsequently instead of water. A method is described of transferring the solution from a cartridge into a hypodermic syringe.
Patent GB-375340-A (GB)
Title: Improvements in and relating to electric motor control
IPC: B60L15/04
Filed: 1931-02-17
Abstract: 375,340. Controlling traction motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, TUPPEN, E. B., 54, Hillmorton Road, and BUTLER, F. E., 74, Eastlands Road, both in Rugby. Feb. 17, 1931, No. 5023. [Class 38 (iii).] Safety arrangements.-Incorrect working of motor control apparatus in a traction system during passage of collector shoes over rail gaps is avoided by arranging relays so as to increase the effective length of the gap. When either shoe 2a, 2b, Fig. 1, leaves the rail, the corresponding relay 6a, 6b drops and immediately opens the circuit of the no-volt coil 9, which causes the opening of the main contactors 5. These do not reclose until both shoes have passed the gap and both relays have returned to their normal raised positions, sufficient timelag being given to the reclosure of the no-volt relay to obviate premature resetting. The novolt coil may be shunted through an impedance by a switch interlocked with the line contactors, for the purpose of accelerating the drop-out action and delaying the reclosure. The relays may be interlocked mechanically as shown in Fig. 3. When either coil is energized, both relays lift up to the point where catches 23 release a plate 26, whereupon the other relay drops its coil is sufficiently energized.
Patent GB-1206471-A (GB)
Title: Improvements in and relating to processes for discharging static electricity
Inventor: HEALEY LEONARD EDWARD
IPC: H05F3/04
Filed: 1967-02-02
Abstract: 1,206,471. Discharging static electricity. DETEXOMAT Ltd. 15 Jan., 1968 [2 Feb., 1967], No. 5024/67. Heading H1X. Static electricity is discharged from an article, e.g. a moving web, sheet or thread, by contacting the article with a gas which has been ionized by the application thereto of an alternating voltage of rectangular waveform. Periods during which the gas is not ionized are greatly reduced as compared with a sine wave voltage. A transistor inverter is described for generating the voltage which may have an amplitude of 5 to 25 kV at a frequency of 400-500 c.p.s. The inverter is connected to an ionizing head which may be positioned adjacent the article, or a blower may be used to blow ionized air from the head to the article.